Textile apparatus



TEXTILE APPARATUS Filed Sept. 9, 1948 INVENTOR. W l l F. sUTHERLANu 4,7/9 FQEER CK ATTORNEYS.

Patented Feb. 23, 1954 TEXTILE APPARATUS Frederick F. Sutherlan d,Cumberland, Md., as-

signor to Celanese Corporation of America, a corporation of DelawareApplication September 9, 1948, Serial No. 48,523

1 Claim.

This invention relates to textile apparatus, and relates moreparticularly to apparatus for unwinding or cleaning yarn from a yarnpackage and to Huid-operated jet means employed in connection with saidapparatus.

As is well known, it is often necessary to unwind the yarn from yarnpackages when the yarn is soiled or damaged or when the length of yarnon the package is below a given minimum. It has hitherto been customaryto ycarry out this unwinding operation manually or by means of motordriven unwinding apparatus which was of limited utility in that itrequired large amounts of labor and operated at relatively low speeds.

It is an important object of this invention to provide an apparatus forunwinding yarn from yarn packages which will be more eiiicient inoperation and simpler in construction than apparatus hitherto employedfor this purpose.

A further object of this invention is to provide an apparatus forunwnding yarn from yarn packages in which a Huid-operated jet means isemployed to draw the yarn from the yarn packages.

Another object of this invention is to provide a novel duid-operated jetmeans for transporting yarn.

Other objects of this invention, together with certain details ofconstruction and combinations of parts, will be apparent from thefollowing detailed description and claim.

In its broadest aspect this invention comprises an apparatus 4forunwinding yarn from yarn packages in which a fluid-operated jet means isemployed to draw the yarn from the yarn packages. The apparatus of thisinvention may be employed for unwinding yarn from various types of yarnpackages such as pirns, bobbins, spools, cakes, etc. Depending upon theneness of the yarn, a single fluid-operated jet means willsimultaneously unwind the ends from l to 100 or more yarn packagesdelivering the yarn to any suitable type of receiver such as a wastecan. The speed with which the yarn is unwound will vary depending uponthe fluid pressure employed, the rate of fluid iiow, the iineness of theyarn and the number of ends being simultaneously handled, and may rangefrom 100 to 3000 or more yards per minute. The fluid employed to operatethe jet means will generally be air since it is the least expensive andmay be used in an open system exhausting to the atmosphere. However,other fluids may be employed, if desired. Fluid pressure may range from25 to 500 or more pounds per square inch and flow rates may range from0.1 to 20 or more cubic feet per second, the particular pressure andrate of flow depending upon the iineness and number of ends of yarnbeing simultaneously unwound, as well as upon the speed desired.

In carrying out this invention the yarn packages may be supported in anydesired manner. For example, the yarn packages may be supported on atransport holding from 25 to 100 or more packages, or on a tableprovided with suitable package supporting means. The yarn may passdirectly from the yarn packages to the fluid-operated jet means or maypass over or through any number of suitable guides before reaching saidjet means. From the duid-operated jet means the yarn may pass directlyinto a suitable receiver such as a waste can or the yarn may passthrough or over one or more yarn guides before reaching said receiver.It is preferred to employ conduits as yarn guides since the fluidcontinues to transport the yarn as it passes through said conduits. Whena plurality of ends are being simultaneously unwound from a number ofyarn packages each end may be individually threaded into the:duid-operated jet means, or each succeeding end may be laid over yarnpassing to the Jet means and will be carried into saidjet means by saidyarn.

This invention also comprises a novel Huidoperated jet means fortransporting yarn in which the rate of fluid flow may be readilyadjusted during operation to control the speed ofv the yarn. Means mayalso be provided to limit the maximum amount of fluid which may bepassed through the jet means, thereby to avoid any waste of fluid and torender the operation of the jet means substantially fool-proof. Inaddition, the uid-operated jet means may be constructed so that the flowof iiuid therethrough may be cut 01T completely to permit shutting downof the apparatus in which said jet means is employed.

A preferred embodiment of this invention is illustrated in theaccompanying drawing in which Fig. 1 is a side elevational View, partlyin section, of the apparatus of this invention;

Fig. 2 is a top plan view of the apparatus shown in Fig. 1 with certainparts omitted in the interests of clarity, and

Fig. 3 is a detail View in section, and on an enlarged scale, showingthe Huid-operated jet means.

Likel reference numerals refer to like. parts throughout the severalviews o-f the drawing.

Referring now to the drawing for a detailed cie-

